Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea09bc8357437801…

MALICIOUS

PDF

39.6 KB Created: 2020-08-19 17:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0a4458d34bc98e9adcd54ecd561ad08 SHA-1: df7ebb4e9574a3d5e47a78b19d55ab143b896095 SHA-256: ea09bc8357437801766edba1051d21b3366cb3c3666cfa429d0b9ad15d8cf2e5
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=hardness+of+water+experiment+lab+report
    • http://wizuko.jhce.org/uploads/1/3/0/7/130775540/topasilorexabanoji.pdf
    • http://files.carloseventscenter.com/uploads/1/3/1/4/131437446/2e29543ef.pdf
    • http://files.myrfinn.com/uploads/1/3/0/7/130738512/2f89f.pdf
    • https://cdn.shopify.com/s/files/1/0440/7581/0966/files/ganujiko.pdf
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/nbme_step_2_ck_form_3.pdf
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/10530033456.pdf
    • https://cdn.shopify.com/s/files/1/0437/6241/7825/files/35870068182.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/xitizufonaguzamojamidez.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/99645384878.pdf
    • https://cdn.shopify.com/s/files/1/0434/5508/6742/files/ps2_cheats_for_gta_san_andreas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37629755229.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c9f.bin
dcf636a19a7209bdc2eac5f7cf8938959eee123ccc3a9729d8e4b33f6bac336d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9F 5448 bytes
font_01_sfnt_off00006f20.bin
db50ab3b8e2f5749756406601070914755c5b7bf4faf99fa0496f11778a2ccba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F20 10072 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.